Detail stripping the M1's trigger
group concludes with the removal of the Trigger
Guard.

In order to remove the Trigger Guard
simply grab it and firmly pull it rearward about
1.25 inches.

Rotate the Trigger
Guard towards the right side of the trigger housing
about 1/4 turn and it will pop free.

That's all there is
to it! Once you have the group apart lay out all
of the parts and give them a thorough cleaning and
re-lubricating before you reassemble them. Do not
oil the hammer or sear where they come together
for safety reasons.